Common questions
Implied volatility crush FAQ
Can IV crush happen if the stock moves up?
Yes. IV crush is about volatility repricing, not direction. A call can lose value after a bullish move if volatility loss and time decay exceed directional gains.
Does IV always fall after earnings?
No. It often can, but actual behavior depends on the magnitude of surprise, market regime, expiration, skew, demand, and liquidity.
Is vega impact exact?
No. Vega is a first-order estimate. Actual option prices also reflect gamma, theta, skew, interest rates, dividends, and market spreads.
Can selling options avoid IV crush risk?
Selling premium may benefit from falling IV, but it introduces gap risk and can create large losses. Defined-risk structures and small sizing matter.
Primary reading: OIC implied volatility overview · OIC Vega guide · OIC volatility and Greeks · FINRA options basics and Greeks · SEC Investor Bulletin on options